Fix imshields badge icon

Author: prabhakk-mw

README.md

@@ -1,5 +1,5 @@
 # MATLAB Proxy
-[![GitHub Workflow Status](https://img.shields.io/github/workflow/status/mathworks/matlab-proxy/Testing%20MATLAB%20Proxy?logo=github)](https://github.com/mathworks/matlab-proxy/actions)   [![PyPI badge](https://img.shields.io/pypi/v/matlab-proxy.svg?logo=pypi)](https://pypi.python.org/pypi/matlab-proxy)    [![codecov](https://codecov.io/gh/mathworks/matlab-proxy/branch/main/graph/badge.svg?token=ZW3SESKCSS)](https://codecov.io/gh/mathworks/matlab-proxy)   [![Downloads](https://static.pepy.tech/personalized-badge/matlab-proxy?period=month&units=international_system&left_color=grey&right_color=blue&left_text=PyPI%20downloads/month)](https://pepy.tech/project/matlab-proxy)
+[![GitHub Workflow Status](https://img.shields.io/github/actions/workflow/status/mathworks/matlab-proxy/run-tests.yml?branch=main&logo=github)](https://github.com/mathworks/matlab-proxy/actions)   [![PyPI badge](https://img.shields.io/pypi/v/matlab-proxy.svg?logo=pypi)](https://pypi.python.org/pypi/matlab-proxy)    [![codecov](https://codecov.io/gh/mathworks/matlab-proxy/branch/main/graph/badge.svg?token=ZW3SESKCSS)](https://codecov.io/gh/mathworks/matlab-proxy)   [![Downloads](https://static.pepy.tech/personalized-badge/matlab-proxy?period=month&units=international_system&left_color=grey&right_color=blue&left_text=PyPI%20downloads/month)](https://pepy.tech/project/matlab-proxy)
 
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